What is "pentaptych"

Pentaptych \Pen"tap*tych\, n. [Penta- + Gr. ?, ?, a fold.] (Fine Arts) A picture, or combination of pictures, consisting of a centerpiece and double folding doors or wings, as for an altarpiece.

n. A picture, or combination of pictures, consisting of a centrepiece and double folding doors or wings, as for an altarpiece.